cve.bz

CVE-2018-12541

6.5 mediumEPSS 2.7%

In version from 3.0.0 to 3.5.3 of Eclipse Vert.x, the WebSocket HTTP upgrade implementation buffers the full http request before doing the handshake, holding the entire request body in memory. There should be a reasonnable limit (8192 bytes) above which the WebSocket gets an HTTP response with the 413 status code and the connection gets closed.

Severity

CVSS 3.1

6.5 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
2.7% chance of exploitation in the next 30 days; higher than 85% of CVEs (scores of 2026-10-31)
CWEs
CWE-119, CWE-789
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-45xm-v8gq-7jqxMavenio.vertx:vertx-core>=3.0.0 <3.5.43.5.4

References

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